Product overview
The BETAFPV F405 2-4S AIO Brushless Flight Controller (BLHeli_S) V3 combines flight control and brushless ESC functions in a compact board for quadcopter integration. Buyers can select a 12A V3 or 20A V3 configuration, with respective peak current ratings of 13A and 22A. Both use an STM32F405RGT6 processor and MPU6000 six-axis sensor. The supplied product is a controller board with mounting hardware and peripheral connectors, intended for installation into a larger aircraft assembly.
Both configurations measure 26mm x 26mm and weigh 5.3g; the 20A board has a thickness of 1.2mm. The two versions share their UART arrangement and receiver connection method, simplifying integration planning across the current options. Two integrated plug-and-play ports accommodate a digital video transmitter and an external receiver, with matching connector leads included. Motor compatibility covers the 110X, 120X and 140X families. Built-in BetaFlight OSD uses SPI communication with the STM32 operating in DMA mode.
Power input is specified for 2S-4S LiPo batteries through an XT30 connector. The ESC runs BLHELI-S G-H-25 firmware and supports PWM, Oneshot125, Oneshot42, Multishot and Dshot150/300/600 control protocols. Current capacity depends on the selected board: 12A continuous for the 12A V3 and 20A continuous for the 20A V3. The package includes four screws in each of two sizes, four rubber vibration dampers, a six-pin digital VTX connector and a four-pin receiver connector. Underside red and blue LEDs indicate power and armed status.
Specifications
| Specification | Value & conditions |
|---|---|
| Product | BETAFPV F405 2-4S AIO Brushless Flight Controller (BLHeli_S) V3 |
| Supplied board configuration | One F405 20A AIO FC V3 or F405 12A AIO FC V3 |
| CPU | STM32F405RGT6 |
| Six-axis sensor | MPU6000 |
| Board size | 26mm x 26mm |
| Flight controller firmware version | Batefight-BETAFPV405-4.2.X |
| OSD | Built-in BetaFlight OSD; STM32 controls the OSD chip over SPI in DMA mode |
| Power connector | XT30 |
| Weight | 5.3g |
| ESC input voltage | 2S-4S Lipo |
| ESC continuous current | 20A20A V3 configuration. |
| ESC peak current | 22A20A V3 configuration. |
| ESC continuous current | 12A12A V3 configuration. |
| ESC peak current | 13A12A V3 configuration. |
| ESC firmware | BLHELI-S G-H-25 |
| ESC control protocols | PWM, Oneshot125, Oneshot42, Multishot, Dshot150, Dshot300, Dshot600 |
| Receiver support | Frsky XM/XM+, Futaba, Flysky, TBS Crossfire and DSMX receivers20A V3 configuration. |
| Receiver support | Frsky XM/XM+FCC, Futaba, Flysky, TBS Crossfire and DSMX receivers12A V3 configuration. |
| Board thickness | 1.2mm20A V3 configuration. |
| Peripheral ports | Two integrated plug-and-play ports for digital VTX and receiver |
| Supported motor families | 110X, 120X and 140X motors |
| Shared board integration layout | 12A V3 and 20A V3 share the UART arrangement, appearance, connection diagram, status LED arrangement and receiver connection method |
| Status indicators | Two underside LEDs: solid red indicates power on; solid blue indicates motors armed |
| Included screws | 4 × M1.2x4mm screws and 4 × M1.4x5mm screws |
| Included dampers | 4 anti-vibration rubber dampers |
| Included peripheral connectors | One 6-pin digital VTX connector and one 4-pin receiver connector |
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